Communication-Fast Electron Transfer Reaction of Azurin Fixed on the Modified Electrode in Hydrated Ionic Liquids

Structure of active site and redox reaction of azurin in a hydrated ionic liquid, cholinium dihydrogen phosphate ([ch][dhp]), was maintained after dissolution of azurin in hydrated [ch][dhp]. Cyclic voltammograms for azurin immobilized on a self-assembled monolayer (SAM) constructed on gold nanopart...

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Published in:Journal of the Electrochemical Society 2016-01, Vol.163 (7), p.G79-G81
Main Authors: Fujita, Kyoko, Kuwahara, Jun, Nakamura, Nobuhumi, Ohno, Hiroyuki
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Language:English
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description Structure of active site and redox reaction of azurin in a hydrated ionic liquid, cholinium dihydrogen phosphate ([ch][dhp]), was maintained after dissolution of azurin in hydrated [ch][dhp]. Cyclic voltammograms for azurin immobilized on a self-assembled monolayer (SAM) constructed on gold nanoparticle (AuNP) electrodes showed a reversible and stable redox response in hydrated [ch][dhp]. The electron transfer rate (ks) between azurin and the electrode in hydrated [ch][dhp] was 202 s−1, which is larger than that in 10 mM ammonium acetate buffer (ks = 44 s−1).
doi_str_mv 10.1149/2.0301607jes
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title Communication-Fast Electron Transfer Reaction of Azurin Fixed on the Modified Electrode in Hydrated Ionic Liquids
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